Line-connecting device.



A. H. DYSON.

UNE CONNECTING DEVICE. APPLICATION FILED FEB.Z, 1915.

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LINE CONNECTING DEVICE.

APPLICATION FILED FEB 2, 1915- 7 1,182,533, Patented May 9,1916.

3 SHEETS- SHEET 2.

A. H. nvsow. LINE CONNECTING DEVICE.

APPLICATION FILED FEB. 2, 1915. 1,182,538. Patented May9,1916.

3 SHEETSfSHEET 3- V of New Jersey.

ALFRED H. .DYSON,-

or" MoN'rcLAm, NEW

JERSEY, ASSIGNOR, BY ASSIGN- MENTS, TO WESTERN ELECTRIC COMPANY, INCORPORATED, A- CORPORATION OF NEW YORK.

LINE-CONNECTING DEVICE.

Sp tcification of Letters Iatent.

Application filed February 2. 1915.

To all whom it may concern Be it known that L'Anrm-in H.,'DYSON, a citizen of the United States, residing at Montclai gin the county of Essex and State have invented certain new and useful Improvements in Line-Connecting Devices of which the following is a. full. clear, concise, and exact description,

This'invention relates to telephone switchingdevices, and particularly to switches of the cross-bar typethat is, switches in which groups of intersecting bars are provided and whereby the conjoint action of a bar of one group with that of another is arranged to cause inter-engagement of sets of line contacts. One ofthe objects of this invention is the provision of a structure of this character by means of which the connection of lines will be accomplished with rapidity and certainty.

A further object of the invention is the provision of a structure of' this character which is cheap of construction and in which the parts will be readily maintained in their adjusted positions.

Other objects and from time to time, as invention progresses.

In the draw'ingsFigure 1 is a plan view of theembodiment of, the device herein disclosed; Fig. 2 is a side elevation of the structure shown in Fig. 1; Fig. 3 is a view taken on the line 3?) of Fig; 1; and Fig. 4 ,is a detached view advantages will appear the description of the showing the operating bars and their relation to' the arm of one 7 of the movable contact sets. 1

Ingeneral the switch consists of apanel bank 1, the contacts 2 ofwhich are formed as integral portions or teeth of metallic strips 3. These strips 3 are arranged in sets of three (see Fig. 3) and all the contacts thereof are multiple terminals of an outgoing line which will hereinafter be referred to as a trunk. These strips are insulatedfrom each other and the strips forming the sets are clamped in the bank between the strips 3 of insulation. There may be as many of these sets of stripsin the bank as there are trunk lines in a group. The incoming line contacts 4, whici will be hereinafter referred to as merely line con- 12, (Fig. 1). Upon the Patented MayS), 1916.

Serial No. 5,666.

tacts, are insulatively secured to the pivotally supported arms 5. A set of the contacts 4'. will be provided for each set of contacts 2. The contacts 4: representing the multiple terminals of an incoming line will be arranged in a vertical row with the pivotal points substantially in alinement. For eachgroup or row of contacts 4 a line bar (3 is provided which has operating fingers 7, one for each pivoted arm 5. Slidably mounted at substantially right angles to the bars 6 and fingers 7 are trunk bars 8 and resetting bars 9, one of each of these bars being provided for each finger 7 on an intersecting line bar.

The operation is as follows: Upon the initiation of a call on the incoming line, the corresponding bar 6 will be elevated by means of its-magnet 10, thus placing the fingers 7 in juxtaposition or in the same horizontal plane with thearms 5 of the corresponding sets of line terminals. This will place the fingers 7 within the notches 11 of the several intersecting trunk bars.

nOne of the trunk bars Wlll then be moved to cause one of the fingers 7 to engage the adjacent pivoted contact carrying bar 5 and rotate it until the contacts 4 are in engagement with the cooperating sets of trunk contacts 9.. This movement. of the trunk bar is accomplished by means of the magnets operation of the appropriate magnet 12, a corresponding bar 8 at the bottom of this figure will be moved to the right and the bar 8 at the top of this figure, which is connected to the one at the bottom by means of the pivoted link 13, will be moved to the left. After connection is accomplished, both the operated line bar and trunk will be returned to their normal position. Upon,v disconnection, a reset or restoring bar 9, corresponding to the used trunk; will be actuated. Each of these bars has a series notches 14, each of of which receives oneof the. pivoted arms 5. Upon the energization of the operating magnet 15 of the restoring bar, the bar 9 shown Fi 1 will be simultaneously moved to the right, while the bar shown at the bottom of Fig. 1 will be simultaneoulsy moved to the left through the medium of the pivoted link 16. Upon such movement, the shoulder of the notch 14 which receives the pivoted arm 5 of the actuated set, will engage said arm 5 and rotate it back to inoperative .position.

Describing the structure now more in detail the bars 17 and 18 are the uprights or supports upon which the switch structure is mounted. To the bars 17 are secured the substantially parallel strips 19 and 20 in which are slidably mounted the trunk bars 8 and the restoring bars 9. Also secured to the bars 17, in substantially parallel relation to each other but at right angles to the bars 19 and 20, are the strips 21 on which are mounted the bars 22 to which the line bars 6 are linked by means of thebell crank levers 23 and the armatures 24 of the actuating magnets 10. I

To the strips 18 are secured in any desired manner the bank of trunk contacts. Secured in the panel bank between adjacent pairs of sets of trunk contacts 2 are the plates 25 to which the arms 5 are pivotally secured by means of the shouldered hollow rivets 26. The rivets of the arms of the sets rcpresenting the terminals of a single line are all arranged in. substantial.alinement, and the conductors 26' for connecting the corre-- sponding brushes in multiple extend through these rivets. After the brush set has been rotated on its supporting rivet 26, it is maintained in its adjusted position by the frictional engagement of its bearings and assisted by the friction. of the brush 27 with the plate 25.

Upon upward movement of the bar 6, the lower extension of the bell crank lever 23 is arranged to cause interenga'gement of the contacts 28 and 29 for a purpose which will be hereinafter described? The downward movement of the bar 6 is limited by cngagement of the adjustable screw 30 with strip 22. The fingers 7 are secured to'the bars 6 in such a manner that they, may be readily flexed upon being engaged by a trunk bar, but will, be. maintained when at rest in a definite position. This connection consists of the spring or flexible plate 31 rigidly secured to the bar 6 in any desired manner, as by rivets 32 and the cooperating finger 33 which is if egral with the bar 6. The spring membrr 31 is provided with a pair of outwardly projecting lugs or rivets 34 which are received in perforations in the end of the finger 7. The spring 31 tends constantly to press the bar into engagement with the finger33 which engages the member 7 substantially centrally betweenthe rivets 34. By this arrangement, the member 7 can be readily moved to the right, as viewed in Fig. 4;, but upon release, will be returned to a definite position in engagement with the stop finger A set of line contacts 4: consists of four brushes,the two outermost of which engage avhich are in effect the two outermost contacts of the set of trunk terminals 2, while the two innermost, one brush, engage on opposite sides of the middle trunk terminal of the set. The two middle brushes may be electrically connected as by means of a rivet or pin v The links 13 and 16 are pivotally secured at their central portions to brackets 36, secured in any desired manner to the bars-19. At each end these links are provided with outwardly extending flanges 37, in which are formed thenotches 72 which receive the collars 38 secured on the ends of the trunk bars 8 and restoring bars 9 by means of the nuts 39. These notches in the direction of the length of the bar, are of slightly greater diameter than the collars 38, and thus allow a sliding action upon actuation of the bars.

As the contacts and operating bars therefor may be arranged to operate in a much less space than the operating magnets 12 for the trunk bars, these magnets are staggc1-ed-tl1at is, one is arranged on one side of the line of the bars and the next arranged on the opposite side. Thus, alternating bars will be actuated by magnets forn'iing a row on one side of the plane of the bars and the remaining bars will be actuated by magnets forming a row,- on the opposite side of the bars. The 'inagnets 12 are carried by the members 40" secured to the strips'2Q. The armatures 1 1 of these magnets are pivotally supportedo'n the members 40, and at their opposite ends a portion 42thereof extends through an opening 43 in the extension 44 ofthe bars 8. Integral with the armature 41 and extending at right angles thereto is a. contact operating member magnet 12 is energized, forces spring 46 into engagement with s iring 47.

.livotally secured to the armature 41, near the/outer end thereof, is a member 4-8 which has an inwardly projecting portion 49 engaged by a spring 50 rigidly secured to the armature 41 in any desired manner. Secured to the member 40 in any desired manner is a bracket 51 integral with which is a pair of lugs 52 and 53, the purpose of which will. presently appear. Also secured to the member 40 is an L-shapcd strip 54 and a plurality of insulated contact springs 55, 56, 57 and .The L-shapcd member 54 is pro vidcd near its outer end with a perforation 5!) which receives the shouldered end (it) of the metallic strip (31. The opposite cud of the strip ll is provided with a notch which receives the pivoted mcmluu'flH. The member 48. intermediate the ends thereof, is provided with a contact operating member 2 which serves no! ially to maintain springs :77 and 58 separated.

Projecting from the strip 61 is a contact operating lug 63 which normally engages spring 55 and maintains it in engagement 45, which when the v -movement is limited by with contact 56. The member 48 is provided near the free end thereof with a cam projection 64. \Vhen the armature 4:1 is attracted, the cam 61 engages the strip 61 and most or attracted position, passes beyond the member 61. Member 48 is then moved toward member 61 by Ineans of the spring 50. The other cam surface of 64: now engages the member 61 and forces it outward into engagement with the stop 52. This allows springs 55 and main open until the armature has reached nearly its fully retracted position,

reverse movement takes place-that is, the

' outersurface of cam 64 rides past the spring 61 which is then forced against stop 53 to again close contacts and 56. As the armature structure and contact springs of the restoring bar magnets 15 are the same reference characters are applied to similar parts of both of these several magnets.

Mounted on the upper end of the core of the actuating magnet 10 for the line bar 6 is the spool 65 of a relay which may be a line relay, This spool has a magnetic circuit extending through the bar 66 and is thus independent in operation from magnet. 10.

Adjacent the upper end of this relay is the armature 67 which pivotally supported for horizontal movement in the bracket 68 on the bar 22. Adjacent the outer end of the armature 67 is a pair of springs 69 and 70, the engagement of which is caused upon attraction of the armature 67. These contacts 'may be usedto close a local circuit through the operating magnet 10. The outward movement of the armature is limited by means of the stop 71 secured to the end of the magnet core. The several pairs of circuit controlling contacts associated with various parts of the switch mechanism may be utilized in controlling the circuits of the systeniwith which this device may be used.

The operating magnets 10 are arranged in two rows, alternate magnets being in one row and the remaining magnets in the other. This is for the same reason as the arrangement provided for the operating magnets of the trunk bars and the restoring bars.

More in detail the operation of the switch is as follows: Assuming that a call initiates upon a line represented by a vertical row of pivoted contact sets, the bar 6 corresponding to this line and to said contact sets will be shifted upwardly by the energization of its magnet 10, thus bringing the flexibly mounted fingers 7 opposite the arms 5 of 56 to separate and rewhen thethe terminal contacts identical with those of the trunk bar or setting magnets 12,

the several multiply connected sets of line terminals. As the bar 6 reaches its upward position contact This may be used to complete a circuit through the actuating magnet 12 forthe bar 8, corresponding to a trunk which may be selected in any desired manner. The energization of the actuating magnet 12 of a trunk will cause the lower bar 8 of said trunk to move to the right, and the upper bar 8 to move to the left, as hereinbefore described. This movement of the two bars 8 will be without effect, except on the finger at the point of intersection of the actuated bar 6 and the actuated bar This finger "at the point of intersection will be moved into engagement with the rotatable contact carrying arm 5, and will rotate the arm 5 until the brushesd arein engagement with 2 of the selected trunk. Both the'trunk bar and line bar may now be returned to normal position as the contacts will be maintained in engagement by the frictional engagement of the parts of the movable contactset. Upon disconnection, a restoring magnet 15 of the selected trunk will be momentarily energized, causing the upper bar 9 of said trunk to move to the right and move to the left. This action, through the medium of the shoulder on the notch 14 which received the pivoted arm 5 of the actuated line set, will cause said set to be rotated back to its normal position.

If desired only one half of the switch need be employed, that is, only so much as is shown in the lower half of Fig. 1. It thus used, the links 13 and 16 would be omitted and the restoring magnets'15 would be associated directly with the lower bar 9 and would preferably be mounted at the right side of the switch as viewed in this figure.

As it is obvious that many modifications may be made in this invention, without de parting from the spirit thereof, I desire it understood that the invention is to be limited merely by the scope of the following claims.

' What is claimed is:

1. In a switch, a plurality of rows of multiplyconnected contacts, contact actuating bars one for each row respectively, means for moving one of said barsand means connecting said bars whereby the movement of one bar will cause the movement of all.

2. In a switch, two rows of contacts, con tact actuating bars one for each row respectively, means for moving one of said bars and a link connecting said bars whereby the movement of one will cause'the movement of both.

3. In a switch,two parallel rows of multiply connected contacts, contact actuating 28 will engage contact 29.-

the lower bar 9 to bars one for each row, means for moving one of said bars and a pivoted link connecting said bars whereby the movement of one bar will cause an opposite movement of the other.

4. In a switclna panel bank, two rows of multipl v connected contacts. one projecting from each side of said bank, contact actu-. ating bars one for each row respectively mounted on opposite sides of said bank. elect omagnetic means for moving one of said bars and a link connecting said barswhereby the movement of one bar will cause the movement of the other.

5. In a switch, a panel bank consisting of metallic strips having integral contact portions projecting in rows from opposite sides of said bank, contact actuating bars one for each row of contacts formed by the projections of said trips, said bars being mounted in pairs on opposite sides of said bank, means for moving one of the bars of a pair and means connecting sa d bars whereby the movement of one will cause a movement of the other in the opposite direction.

P. In a. telephone switch. sets oi bars. means for moving said bars longitudinally. contact setsindcpciulent ol but adjacent to said bars and means whereby the movement of a bar o'l each set will actuate a contact set.

7. In a telephone switch. sets of bars, means for moving said bars longitiulinallv, contact sets independent of but :uljacent to said bars respectively and means wherely the movement of a bar oi each set will cause interengagement of their respective contact sets.

8. In a telephone switch. sets of bars, means for moving said bars longitudinally, stationary contact sets individual to the bars (it one set. movable contact sets independent of but adjacent to the bars of the other set and means whereby the movement of a ha of each set in a definite order will cause the engagement of one of said stationary contact sets by a movable contact set.

9.'In a telephone switch, sets of bars, the bars of one set being arranged at an angle to those ot the other, means for moving said bars longitudinally, contact sets individual to said bars respectively but independent thereof and means whereby the movement of a bar of each set in a definite order will effectinterengagement of their respective contact. sets.

10. In a telephone switch. sets of bars, the bars of one set being adjacent to and at substantially right-angles to those of the other, means for moving said bars longitudinally, contact sets iiulividual to each-of said bars but independent therefrom in proximity to their adjacent or intersecting points and means wherebythe movement of a bar of I cachsct will elljcct interengagement of their respective contact sets at the point of intersection of the actuated bars.

11. In a telephone switch, sets of bars, means for moving said bars. contact sets iiidividual to each of said bars. means whereby the. movement of a bar-of each set will effect engagement oi. their respective contacts. a third set of bars and means for moving the bars of said third set to return said contact sets to normal.

12. A telephone switch comprising sets of bars. the bars-of one set heing at. an angle to those of the other. means for moving said bars longitiulinally, multiple circuit teriniiials mounted adjacent to but independent of whereby the selective and successive movement of a bar of each set in a definite order will etl'cct inte'rcngagement of the terminals fixed panel bank. contact sets. mounted in' said bank. movable contact sets individual to the bars of one group and means whereby the movement of a bar of each group in definite order will cause interengagei'ncnt of their respective contact sets.

H. In a telephone switch. sets of bars, means for moving said bars longitudinally, cooperative sets of contacts mounted independentot' but adjacent to the points of iiitersection oi said bars. cooperating actuating portions onv said bars at their points of intersection.said contact actuating members being so ari'.-uigcd that the movement of a bar of each set will actuate the contact set adjacent to the point of intersection of said bar.

l5. In a telephone switch. sets of bars,

contact sets adjacent to but independent of said bars. flexible arm carried by the bars of one set adjacent to each of the bars oi the second set. an operating surface on each of the bars of the second set in operative relation to its respective flexible arm and means for displacing a bar of each set whereby the flexible arm and its operating surface will cooperate to actuate a contact set.

16. In a telephone switch, sets of intersecting bars, groups of contact sets individual to each of said bars the contact sets corresponding to the bars of one group being mounted in a panel blank, the contact sets corresponding to the bars of the other group being rotatably mounted adjacent to the sets of" the other group respectively, and means whereby the displacement of a bar of each group will cause intcrengagement of their respective contact sets at the point of intersection of said bars.

-l7. In a telephone switch, a fixed panel bank, rows of nniltiply connected contacts projecting from said bank, rows of mntiply connected and pivotally supported contact sets extending at an angle to the rows of fixed contacts, one movable set being adjacent each fixed set, groups of bars correrows of multiply connected and pivotally supported contact sets extending at an angle to the rows of fixed contacts one movable set being adjacent each fixed set, groups of bars corresponding and parallel to'said rows of contacts, means for moving said bars longitudinally and means whereby the movement of a bar of each'set Will cause engage ment of the-corresponding sets of contacts; In Witness whereof, I hereunto subscribe my name this 1st day of February, A. D.

ALFRED H. DYSON" Witnesses:

E. EDLER, K. L. STAHL. 

